*: intrduce and use safe_gethostname. By Tito <farmatito AT tiscali.it>
safe_gethostname - 48 +48 glob3 35 37 +2 timestamp_and_log 314 315 +1 udhcp_send_kernel_packet 234 231 -3 scan_tree 275 271 -4 passwd_main 1074 1070 -4 print_login_prompt 68 58 -10 obscure 392 377 -15 syslogd_main 882 866 -16 print_login_issue 516 478 -38 hostname_main 278 223 -55 parse_and_put_prompt 825 756 -69 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/9 up/down: 51/-214) Total: -163 bytes text data bss dec hex filename 798791 728 7484 807003 c505b busybox_old 798631 728 7484 806843 c4fbb busybox_unstripped
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@@ -73,6 +73,7 @@ lib-y += recursive_action.o
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lib-y += remove_file.o
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lib-y += restricted_shell.o
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lib-y += run_shell.o
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lib-y += safe_gethostname.o
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lib-y += safe_poll.o
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lib-y += safe_strncpy.o
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lib-y += safe_write.o
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@@ -1203,11 +1203,7 @@ static void parse_and_put_prompt(const char *prmt_ptr)
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break;
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#endif
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case 'h':
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pbuf = free_me = xzalloc(256);
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if (gethostname(pbuf, 255) < 0) {
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pbuf[0] = '?';
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pbuf[1] = '\0';
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}
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pbuf = free_me = safe_gethostname();
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*strchrnul(pbuf, '.') = '\0';
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break;
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case '$':
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@@ -50,6 +50,7 @@ void print_login_issue(const char *issue_file, const char *tty)
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outbuf = uts.sysname;
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break;
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case 'n':
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case 'h':
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outbuf = uts.nodename;
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break;
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case 'r':
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@@ -72,10 +73,6 @@ void print_login_issue(const char *issue_file, const char *tty)
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case 't':
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strftime(buf, sizeof(buf), fmtstr_t, localtime(&t));
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break;
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case 'h':
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gethostname(buf, sizeof(buf) - 1);
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buf[sizeof(buf) - 1] = '\0';
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break;
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case 'l':
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outbuf = tty;
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break;
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@@ -91,13 +88,12 @@ void print_login_issue(const char *issue_file, const char *tty)
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void print_login_prompt(void)
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{
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char buf[MAXHOSTNAMELEN+1];
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if (gethostname(buf, MAXHOSTNAMELEN) == 0)
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fputs(buf, stdout);
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char *hostname = safe_gethostname();
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fputs(hostname, stdout);
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fputs(LOGIN, stdout);
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fflush(stdout);
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free(hostname);
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}
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/* Clear dangerous stuff, set PATH */
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@@ -93,7 +93,7 @@ static const char *obscure_msg(const char *old_p, const char *new_p, const struc
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/* Add 2 for each type of characters to the minlen of password */
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int size = CONFIG_PASSWORD_MINLEN + 8;
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const char *p;
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char hostname[255];
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char *hostname;
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/* size */
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if (!new_p || (length = strlen(new_p)) < CONFIG_PASSWORD_MINLEN)
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@@ -108,12 +108,11 @@ static const char *obscure_msg(const char *old_p, const char *new_p, const struc
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return "similar to gecos";
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}
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/* hostname as-is, as sub-string, reversed, capitalized, doubled */
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if (gethostname(hostname, 255) == 0) {
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hostname[254] = '\0';
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if (string_checker(new_p, hostname)) {
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return "similar to hostname";
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}
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}
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hostname = safe_gethostname();
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i = string_checker(new_p, hostname);
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free(hostname);
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if (i)
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return "similar to hostname";
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/* Should / Must contain a mix of: */
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for (i = 0; i < length; i++) {
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